Chem4kids
Chem4 Kids: Halogens
This Chem4Kids site provides a nice description of the Halogen group. Content focuses on what makes them alike and what Halides are.
School of Biological and Chemical Sciences, Queen Mary University of London
Queen Mary Univ.: Atomic Weights of the Elements 2017
This site from the Queen Mary University of London provides a list of the discovered atomic weights and elements up into the year 2017.
Science Struck
Science Struck: What Is a Bromine Test?
Explains what a bromine test is, the chemistry behind it, what it is used for, and gives examples of bromine test strip brands that are used for test the water in swimming pools and at spas.
Science4Fun
Science4 Fun: Chlorine
Read fun facts and details about the element Chlorine, while learning about its characteristics, properties, uses, discovery, and where it is found.